setup-trezre[.]pages[.]dev

setup-trezre.pages.dev was first observed on February 21 2026 when the domain was registered through Cloudflare, Inc. The authoritative nameservers are rodney.ns.cloudflare.com and kira.ns.cloudflare.com, indicating that the domain is hosted on Cloudflare’s edge network. DNS resolution points to IP address 172.66.47.143, which belongs to AS13335 (Cloudflare, Inc.) and is geolocated in the United States. The site serves an HTTPS certificate issued by Google Trust Services under the WE1 leaf, and the TLS configuration enforces HTTP Strict Transport Security (HSTS) and supports HTTP/3, confirming the use of modern Cloudflare security features. A single security blocklist, PhishDestroy, has already flagged the domain, and it appears on one additional blocklist.

VirusTotal analysis shows that one out of ninety‑three scanning engines raised an alert, reinforcing the suspicion of malicious activity. The HTTP response returned a 403 status code, and the page title displayed by the server is “Suspected phishing site | Cloudflare,” which is a default Cloudflare warning page used when a site is taken down for abuse. The Gridinsoft trust score is 0 out of 100, the lowest possible rating, further indicating a lack of trust. The listed scam type is credential phishing, implying that the domain was employed to harvest user credentials, although the exact target brand or login portal has not been disclosed.

No additional forensic artifacts such as payload hashes, phishing email samples, or victim reports are currently available, leaving the scope of the campaign uncertain. Defenders should add 172.66.47.143 to network‑level deny lists, block the domain name in DNS filtering solutions, and monitor for any resurgence of the domain or related subdomains under the same Cloudflare account. Continuous re‑query of VirusTotal and blocklist feeds is advised to capture any new detections.